Sonic Adventure 2 is a continuation of the action-adventure game with a third-person view in the Sonic the Hedgehog universe. Doctor Eggman once again strives to establish his power over the entire world. Teaming up with the dark hedgehog Shadow, he decides to use the power of the Chaos Emeralds. Together with his friends, Sonic will have to stop the villains and save the world from imminent destruction.